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Teenager jailed for 14 years for 'pure evil' stabbing of pupil outside school gates in Willesden

The knife-wielding teenager wore a mask and waited for Serunkuma-Barnes outside a school in Willesden

A 15-year-old boy has been jailed for stabbing a teenager outside his school gates in Willesden in an act condemned as “pure evil”.

The youth, who cannot be identified for legal reasons, was found guilty of murder on July 30 and jailed for at least 14 years at the Old Bailey on Wednesday (September 6).

On January 23, the knife-wielding teenager wore a mask and waited for Quamari Serunkuma-Barnes outside Capital City Academy in Doyle Gardens.

Just before 3.30pm, as children left the school, the teenager saw “happy and hardworking” GCSE student Quamari and chased him with a large kitchen knife.

The 15-year-old victim ran for his life, shouting for help and desperately saying he was going to be stabbed.

The defendant, whose actions were labelled “malicious”, caught up with Quamari by the school gates and stabbed him three times.

The young victim was taken to hospital where he managed to tell a nurse who had carried out the attack before he died from his injuries .

Despite wearing a mask, witnesses of the stabbing recognised the killer and he was arrested the next day, January 24.

Quamari Serunkuma-Barnes was stabbed three times by his school gates(Image: Met Police)

The Old Bailey heard the motive for the brutal attack was unknown.

However, since his conviction, the defendant admitted he carried out the attack and that he knew that it was Quamari.

During the murder trial, prosecutor Sally O'Neill QC said: “It is not accepted that Quamari was anything to do with any sort of gang.

"Information from the school painted a picture of a happy, hard working, well liked and sociable boy."

Quamari's mother, Lillian Serunkuma, described the killer's acts as “pure evil” in a statement read out in court.

"You never gave Quamari a second chance to defend himself,” she wrote.

"You took his life in a cold and malicious way."

The victim was known as a "hard-working" 15-year-old(Image: Facebook)

The court also heard the defendant had a string of convictions, including for punching a girl.

In a statement expressing remorse, the 15-year-old defendant said: "I want to say that I'm sorry for what I did.

"I don't know why I did it. I was scared and confused.

"I'm telling the truth for Quamari's mum and dad. I'm sorry. I didn't mean Quamari to get so hurt.

"I'm not a murderer. I'm not a waste man. I didn't want him to die.

"I want to have a different life but I don't know how. I'm trying."

Judge John Bevan QC told the court on Wednesday (September 6) it was “infinitely depressing" to sentence a young person for such a serious crime.

However, he said the fact the defendant had admitted his guilt would be "a comfort" to Quamari's parents.

"It is very unusual to admit a murder after conviction,” Judge Bevan said.

"It is a mature decision rather than taking your chances in the Court of Appeal."

After sentencing the youth to 14 years in prison, he added: “This is a bad case of its kind because Quamari can have done nothing to merit an attack of this severity.

"His death was a product of a total lack of self-control combined with the cowardice of knifing an unarmed victim."

Paul Barnes, Quamari's father, wept in court as the boy was sentenced and said he was “happy” with the sentence, although it would not bring his son back.

On the defendant's admission of guilt, Mr Barnes said: "Personally, I think he was just grabbing at straws, trying to save his own skin. Last ditch dot com. Trying to save his own bacon."

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